Lung Diffusion Capacity

Lung diffusion capacity, often measured as DLCO (diffusing capacity of the lungs for carbon monoxide), assesses how well gases move from the lungs into the bloodstream. It indicates the efficiency of the alveoli, the tiny air sacs in the lungs where oxygen and carbon dioxide exchange occurs. A higher capacity suggests healthy lungs, while a lower value may indicate issues like lung diseases or problems with blood flow. This test helps doctors understand lung function and diagnose conditions such as emphysema, pulmonary fibrosis, or anemia, ultimately aiding in effective treatment planning.